Perform the indicated operations:__ 1. (2x2 - 3x +2) + (-x2 + x – 2)__ 2. (x2 + 3x -4) + 2(-x + 2)__ 3. (3x2 + 4x -2) – ( x2 - 5x +7)__ 4. (3y2 - y -6) – (4y2 + 5y +3) 5. (2x + 5) + (-3x – 2)__ 6. (8m – n) - (7n + m) + 3m__ 7. (2x + 3) (x – 1)__ 8. (2x – 3) (x – 2)__ 9. 2x ( 4x2 -5x + 3)__ 10. (x – 6) (x + 5)_ 11. (8xy) (-2xy5)__ 12. (x +2) (x2 -3x + 7) 13. (2x – 1) (x2 +4x - 6)__ 14. -15xy/ 3x2y__ 15. 24x3 -16x2 + 32x/ 8x_ 16. -27a3 + 18a2/-9a2+
Question
Perform the indicated operations:__ 1. (2x2 - 3x +2) + (-x2 + x – 2)__ 2. (x2 + 3x -4) + 2(-x + 2)__ 3. (3x2 + 4x -2) – ( x2 - 5x +7)__ 4. (3y2 - y -6) – (4y2 + 5y +3) 5. (2x + 5) + (-3x – 2)__ 6. (8m – n) - (7n + m) + 3m__ 7. (2x + 3) (x – 1)__ 8. (2x – 3) (x – 2)__ 9. 2x ( 4x2 -5x + 3)__ 10. (x – 6) (x + 5)_ 11. (8xy) (-2xy5)__ 12. (x +2) (x2 -3x + 7) 13. (2x – 1) (x2 +4x - 6)__ 14. -15xy/ 3x2y__ 15. 24x3 -16x2 + 32x/ 8x_ 16. -27a3 + 18a2/-9a2+
Solution
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(2x^2 - 3x + 2) + (-x^2 + x - 2) = 2x^2 - 3x + 2 - x^2 + x - 2 = (2x^2 - x^2) + (-3x + x) + (2 - 2) = x^2 - 2x
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(x^2 + 3x - 4) + 2(-x + 2) = x^2 + 3x - 4 - 2x + 4 = x^2 + x
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(3x^2 + 4x - 2) - (x^2 - 5x + 7) = 3x^2 + 4x - 2 - x^2 + 5x - 7 = (3x^2 - x^2) + (4x + 5x) + (-2 - 7) = 2x^2 + 9x - 9
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(3y^2 - y - 6) - (4y^2 + 5y + 3) = 3y^2 - y - 6 - 4y^2 - 5y - 3 = (3y^2 - 4y^2) + (-y - 5y) + (-6 - 3) = -y^2 - 6y - 9
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(2x + 5) + (-3x - 2) = 2x + 5 - 3x - 2 = (2x - 3x) + (5 - 2) = -x + 3
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(8m - n) - (7n + m) + 3m = 8m - n - 7n - m + 3m = (8m - m) + (-n - 7n) + (3m) = 10m - 8n
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(2x + 3)(x - 1) = 2x^2 - 2x + 3x - 3 = 2x^2 + x - 3
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(2x - 3)(x - 2) = 2x^2 - 4x - 3x + 6 = 2x^2 - 7x + 6
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2x(4x^2 - 5x + 3) = 2x * 4x^2 - 2x * 5x + 2x * 3 = 8x^3 - 10x^2 + 6x
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(x - 6)(x + 5) = x^2 + 5x - 6x - 30 = x^2 - x - 30
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(8xy)(-2xy^5) = 8xy * -2xy^5 = -16x^2y^6
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(x + 2)(x^2 - 3x + 7) = x(x^2 - 3x + 7) + 2(x^2 - 3x + 7) = x^3 - 3x^2 + 7x + 2x^2 - 6x + 14 = x^3 - x^2 + x + 14
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(2x - 1)(x^2 + 4x - 6) = 2x(x^2 + 4x - 6) - 1(x^2 + 4x - 6) = 2x^3 + 8x^2 - 12x - x^2 - 4x + 6 = 2x^3 + 7x^2 - 16x + 6
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-15xy / 3x^2y = (-15xy) / (3x^2y) = -5 / x
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(24x^3 - 16x^2 + 32x) / (8x) = 24x^3 / 8x - 16x^2 / 8x + 32x / 8x = 3x^2 - 2x + 4
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(-27a^3 + 18a^2) / (-9a^2) = (-27a^3) / (-9a^2) + (18a^2) / (-9a^2) = 3a + (-2) = 3a - 2
Similar Questions
1. (x+2) (x2-4x+3)__ 2. (x-1) ( x2-8x+7)__ 3. (x-3y) ( x2-5xy+6y2)__ 4. (x+8) (x-1)_ 5. (2m+3n) (4m-5n)__ 6. (a+6) (a-5)_ 7. (x+4) (x-2)__ 8. (3a+7b) (5a-4b) 9. (5m2-6m+10) – (-m2+7m+8)__ 10. (2x2+4x+9) - ( x2-5x-6) 11. 6a + 12 / 3 12. 4x2-8x+12x3 / 4x
Divide (20x8y3 − 12x5y2) ÷ (−4x2y). −5x6y3 + 3x3y2 5x6y3 − 3x3y2 −5x6y2 + 3x3y 5x6y2 − 3x3y
4x-7y=5 9x-7y=-15
Perform the operation and reduce to simplest form: x-3y-3y(x-2y)-(-4x+7y)
(x2- y2)2 + 4x2y2(b) (0.5p -– 1.5q)2 – (0.5p – 1.5q)2 +p2q2(c) 39n3(50n2 – 98 ) ÷ 26n2(5n – 7)(d) 44(p4 – 5p3 – 24p2) ÷ 11p(p – 8)(e) 9p²q² (3z – 12) ÷ 27pq(z – 4)(f) (4x2 – 100) ÷ 6(x + 5)
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